My 2002 Passat Wagon now has 154,000 miles on it. It has very little rust and runs great, couple of quirks like the o2 heater circuit and the dash display that fades as it warms up. It is coming up on its second timing belt change, and it will need the cam tensioner gaskets done as well. My question is on the reliability of the bottom end of these motors and head gaskets? Are the bottom ends and head gaskets pretty bullet proof, and if I do the timing belt and top end gaskets can I get another few years of trouble free engine usage. I know other things can be quirky, it is a VW but trying to decide if maybe it would be time to trade up to a newer model, before I spend the time and money to do the timing and gasket work. I have been meticulous about the maintenance since owning it transmission and differentials have been serviced, it has new brakes and rotors all around. Like I said it does just fine, just want to make sure I don't spend a few hundred on parts for the timing belt, put all the personal time in the change out and find out the bottom end goes 10k later.